Add XCM benchmarks to collectives-westend (#6820) #9518

Job	Run time
preflight / preflight	11s
preflight / ci-versions	1m 3s
test-frame-ui	26m 59s
test-full-crypto-feature	2m 26s
cargo-check-all-crate-macos	10m 45s
cargo-check-benches	0s
cargo-check-each-crate (1)	15m 57s
test-node-metrics	8m 5s
cargo-check-each-crate (2)	17m 4s
cargo-check-each-crate (3)	7m 41s
cargo-check-each-crate (4)	14m 31s
cargo-check-each-crate (5)	21m 24s
cargo-check-each-crate (6)	13m 5s
cargo-check-each-crate (7)	26m 39s
node-bench-regression-guard	6s
test-frame-examples-compile-to-wasm	2m 51s
test-deterministic-wasm	6m 6s
check-tracing	2m 12s
check-metadata-hash	5m 53s
All test misc tests passed	1s
	3h 2m 59s

Provide feedback